Definition of static pressure error compensation law for the air data system, installed on UAV drone

This article contains information about result of estimations and modeling’s for defined static pressure error compensation law for typical air data system, installed on unmanned air vehicle drone. The problem statement: it necessary to provide flight test and post-flight data processing with performing of results to purpose definition of reference static air pressure data, without addicted errors caused by influence of object fuselage and extra forces. Wherein is necessary to give problem decision by means stock drone systems, without using additional trajectory acquiring systems. The optimization and definitions of law was performed by using the computer-aided system MathLab. Analysis of effects after using this law give confirmation, that defining and compensation erroneous static pressure data may be completed without using of expensive external systems or investigation of object in a aerodynamic duct. If stock onboard radio altitude, pressure sensors and GPS altitude with high accuracy will be used, and big number of flight data will be getted, then in expected flight conditions may be reached the descent accuracy of measuring absolutely barometric height to ±2 m.